Hair,I regard it as an ornament,which is used for decoration. One of my friend said she would dye hair frequently if she is in blue or angry. And I saw my uncle and aunt's hair turn white when their daughter's College Entrance examination was approaching. Sometimes I wonder why white hair can't turn to black again like man can't usually make up for their mistakes. So I searched my question with Baidu. Science says it will. You just need more nutrition and head massage. Then I understand why my old granny's hair is still so perfect. She massages her head every morning for about 20 times.
So friends, do you want a black hair even when you're as old as 80, like my grandma? Just care about your hair, give yourself enough nutrition.